Methicillin and penicillin belong to the so-called " beta lactam" family of antibiotics.
甲氧西林和青霉素都属于所谓的“β-内酰胺”抗生素族。
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" Staph aureus bacteria that carry these genes are therefore resistant to most beta lactam antibiotics."
“因此,携带这些基因的金黄色葡萄球菌对大多数β-内酰胺抗生素有耐药性。”
英语百科
β-Lactam
A β-lactam (beta-lactam) ring is a four-membered lactam. (A lactam is a cyclic amide). It is named as such because the nitrogen atom is attached to the β-carbon atom relative to the carbonyl. The simplest β-lactam possible is 2-azetidinone.